After downloading the latest plugin guacamole-history-recording-storage-1.6.0.tar.gz from https://guacamole.apache.org/releases/1.6.0/ and putting the .jar into /app/data/extensions

create the folder /app/data/recordings and set the correct permissions.

mkdir -p /app/data/recordings
chown -R cloudron:tomcat /app/data/recordings
chmod 2750 /app/data/recordings/

add needed configuration to /app/data/guacamole.properties:

recording-search-path: /app/data/recordings

Restart the app.
When I now edit a connection I can see the recording settings for this connection:

Here we set:

• Recording path: to ${HISTORY_PATH}/${HISTORY_UUID}
• Recording name: to ${GUAC_DATE}-${GUAC_TIME}
• Automatically create recording path: checked

Save.

Now when I start the connection, the follow log is visible:

guacd[599]: INFO:       Creating new client for protocol "ssh"
guacd[599]: INFO:       Connection ID is "$9db0c19b-5bb8-4320-b62c-397a79e8b9a0"
guacd[636]: DEBUG:      Processing instruction: size
guacd[636]: DEBUG:      Processing instruction: audio
guacd[636]: DEBUG:      Processing instruction: video
guacd[636]: DEBUG:      Processing instruction: image
guacd[636]: DEBUG:      Processing instruction: timezone
guacd[636]: DEBUG:      Processing instruction: name
guacd[636]: DEBUG:      Parameter "scrollback" omitted. Using default value of 1000.
guacd[636]: DEBUG:      Parameter "font-name" omitted. Using default value of "monospace".
guacd[636]: DEBUG:      Parameter "font-size" omitted. Using default value of 12.
guacd[636]: DEBUG:      Parameter "color-scheme" omitted. Using default value of "".
guacd[636]: DEBUG:      Parameter "enable-sftp" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "sftp-root-directory" omitted. Using default value of "/".
guacd[636]: DEBUG:      Parameter "sftp-disable-download" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "sftp-disable-upload" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "port" omitted. Using default value of "22".
guacd[636]: DEBUG:      Parameter "timeout" omitted. Using default value of 10.
guacd[636]: DEBUG:      Parameter "read-only" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "typescript-name" omitted. Using default value of "typescript".
guacd[636]: DEBUG:      Parameter "create-typescript-path" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "typescript-write-existing" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "recording-exclude-output" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "recording-exclude-mouse" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "recording-include-keys" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "recording-write-existing" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "server-alive-interval" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "backspace" omitted. Using default value of 127.
guacd[636]: DEBUG:      Parameter "terminal-type" omitted. Using default value of "linux".
guacd[636]: DEBUG:      Parameter "timezone" omitted. Using default value of "Europe/Berlin".
guacd[636]: DEBUG:      Parameter "disable-copy" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "disable-paste" omitted. Using default value of 0.
guacd[636]: DEBUG:      Parameter "wol-send-packet" omitted. Using default value of 0.
guacd[636]: INFO:       User "@49d1df2d-669f-4b83-99e9-6e50483e8cde" joined connection "$9db0c19b-5bb8-4320-b62c-397a79e8b9a0" (1 users now present)
guacd[636]: DEBUG:      Client is using protocol version "VERSION_1_5_0"
guacd[636]: INFO:       Recording of session will be saved to "/app/data/recordings/75b6dda2-00c9-330a-869c-f8eaac87d77a/20251020-132330".
13:23:30.647 [http-nio-8080-exec-10] INFO  o.a.g.tunnel.TunnelRequestService - User "guacadmin" connected to connection "1".
guacd[636]: DEBUG:      Attempting private key import (WITHOUT passphrase)
guacd[636]: INFO:       Auth key successfully imported.
guacd[636]: WARNING:    No known host keys provided, host identity will not be verified.
guacd[636]: DEBUG:      Supported authentication methods: publickey,password
guacd[636]: WARNING:    Unable to set the timezone: SSH server refused to set "TZ" variable.
guacd[636]: INFO:       SSH connection successful.

And I can see the recorded file in:

ls -lah /app/data/recordings/75b6dda2-00c9-330a-869c-f8eaac87d77a/20251020-132330

and viewable in the history overview:

Are you refering to https://guacamole.apache.org/doc/gug/configuring-guacamole.html#graphical-recording ? Is that documentation saying we have to record using a CLI tool?

I am referring to this and I like to record both rdp and ssh sessions then view in the playback in browser: https://guacamole.apache.org/doc/gug/recording-playback.html